The Space Shuttle returns to earth, but some of the equipment brought back on it begins to behave strangely. Scientists are unsure what is happening, and decide to take all necessary precautions.
Walter Koenig
as Col. Jason Grant
Bruce Campbell
as Ray Tanner
Robert Kurcz
as Koreman
Leigh Lombardi
as Mera
Tom Case
as Beck
Judy Levitt
as Intrepid Commander
Reavis Graham
as Haskell
Reuben Yabuku
as Intrepid Pilot
Doug Childs
as Grant's Son
Mariafae Mytnyk
as Research Assistant
